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SQL Server Examples

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(SQL Server) Determine the Number of Unseen Email Messages

Demonstrates how to determine how many unseen messages exist in an email account on an IMAP server.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @imap int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Imap', @imap OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Connect to an IMAP server.
    -- Use TLS
    EXEC sp_OASetProperty @imap, 'Ssl', 1
    EXEC sp_OASetProperty @imap, 'Port', 993
    DECLARE @success int
    EXEC sp_OAMethod @imap, 'Connect', @success OUT, 'imap.someMailServer.com'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        RETURN
      END

    -- Login
    EXEC sp_OAMethod @imap, 'Login', @success OUT, '***', '***'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        RETURN
      END

    -- Select an IMAP mailbox
    EXEC sp_OAMethod @imap, 'SelectMailbox', @success OUT, 'Inbox'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        RETURN
      END

    -- After selecting the mailbox. the total number of emails
    -- is immediately available:
    DECLARE @totalNum int
    EXEC sp_OAGetProperty @imap, 'NumMessages', @totalNum OUT

    PRINT 'Num messages = ' + @totalNum

    -- To determine the number of unseen messages, a call
    -- to Search is required, which returns the set of UIDs
    -- of all unseen messages.

    -- We can choose to fetch UIDs or sequence numbers.
    DECLARE @fetchUids int
    SELECT @fetchUids = 1

    DECLARE @messageSet int
    EXEC sp_OAMethod @imap, 'Search', @messageSet OUT, 'UNSEEN', @fetchUids
    EXEC sp_OAGetProperty @imap, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        RETURN
      END

    DECLARE @numUnseen int
    EXEC sp_OAGetProperty @messageSet, 'Count', @numUnseen OUT

    PRINT @numUnseen


    PRINT 'UIDs ----'

    -- Display the UIDs
    DECLARE @i int
    SELECT @i = 0
    DECLARE @msgId int

    EXEC sp_OAGetProperty @messageSet, 'Count', @iTmp0 OUT
    WHILE @i < @iTmp0
      BEGIN
        EXEC sp_OAMethod @messageSet, 'GetId', @msgId OUT, @i

        PRINT @msgId
        SELECT @i = @i + 1
      END

    -- Disconnect from the IMAP server.
    EXEC sp_OAMethod @imap, 'Disconnect', @success OUT

    EXEC @hr = sp_OADestroy @messageSet


    EXEC @hr = sp_OADestroy @imap


END
GO

 

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